To my surprise, I have discovered that even some of my facts are slightly incorrect. The US version of that engine has 16 lbs more torque, not 20 like you said... and the B16b has 15 more horsepower, not 20...which is still more than 4 which you had previoulsy stated earlier. The Japanese Version of the B18c1 is different. I just found a great website that has all the facts. Heres the link:
http://tech.hybridgarage.com/tech/bseries.html

-Linda